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John Mcdonnell
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You need to do ANOVA and then multiple-comparisons corrections using Tukey HSD.
R code looks roughly like this:
myaov <- aov( rating ~ quality, data=mydata )
summary(myaov) # See if anything's sig.
TukeyHSD(myaov) # See what's driving the significance with correction for multiple comparisons.
Concluding the Great MP3 Bitrate Experiment
And now for the dramatic conclusion to The Great MP3 Bitrate Experiment you've all been waiting for! The actual bitrates of each audio sample are revealed below, along with how many times each was clicked per the goo.gl URL shortener stats between Thursday, June 21st and Tuesday, June 26th. ...
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Jun 27, 2012
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